Quote (CMBurns @ 15 May 2022 13:45)
http://net-effects.und.edu/pdfs/Selenium-Mercury.pdf
Read this.
TL;DR:
Tuna contains mercury but also contains selenium. Mercury binds to selenium, therefore counteracting the toxicity of mercury. However, this in turn makes selenium-related protein synthesis more difficult.
This means:
1. Don't worry about mercury toxicity.
2. Instead worry about taking a selenium supplement if you intend to eat a lot of tuna cans on a regular basis.
For some reason my phone is failing to open that pdf, but I believe it is exactly what I read a few days ago... Regardless, what you're saying falls directly in line with what I had read previously, however adding in selenium supplements may not be the best move. Upon further reading, selenium (which I admit I've never really looked into before) is found in many foods that can be considered commonly consumed by health-conscious people, and too much of it presents a range of other potential health issues.
Correct me if I'm wrong, but the effect that selenium has on trace amounts of mercury renders the element safe for human consumption, particularly because the selenium is naturally occurring within the biology of the fish. I am not sure that selenium from outside sources would have the same effect and even if it did, the threshold is apparently pretty easy to overshoot with a "healthy" diet that consists of more calories than a prepubescent child consumes.
Dunno, guess I'll just carry on with what I'm already doing and if I start showing signs of someone undergoing chemotherapy, I'll know its time to quit the cans.